Strength of Materials

4.2 TYPES OF BEAMS

Beams are classified according to their support conditions and not on any other parameter. There are six different methods of supporting a beam.

4.2.1 Simply Supported Beam

Simply supported beam is supported at two ends. This is the most common type of beam. In this case, both ends can be simply supported or one end simply supported and the other end be a hinged support or on a roller (Figure 4.4). Both supports cannot be unstable. Similarly, both ends cannot be hinged support since the beam will produce change in span which is not permitted. When the beam is horizontal, the reaction at the supports is vertical. Depending on the type of loading, the reaction may be upwards or downwards.

 

 

Fig. 4.4 Simply supported beams. ...